using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"(?P<timestamp>[0-9]{4}-[0-9]{2}-[0-9]{2}T[0-9]{2}:[0-9]{2}:[0-9]{2}.[0-9A-Z]+) (?P<elbName>[a-zA-Z-]+) (?P<clientPort>[0-9.:]+) (?P<backendPort>[0-9.:]+) (?P<request_processing_time>[.0-9-]+) (?P<response_processing_time>[.0-9]+) (?P<elb_status_code>[.0-9-]+) (?P<backend_status_code>[0-9-]+) (?P<received_bytes>[0-9-]+) (?P<sent_bytes>[0-9-]+) (?P<request>[0-9-]+) ""(?P<user_agent>[^""]+)"" ""(?P<ssl_cipher>[^""]+)"" (?P<ssl_protocol>[- A-Z0-9a-z.]+)";
string input = @"---ELB LOGS---
2015-05-13T23:39:43.945958Z my-loadbalancer 192.168.131.39:2817 10.0.0.1:80 0.000073 0.001048 0.000057 200 200 0 29 ""GET http://www.example.com:80/ HTTP/1.1"" ""curl/7.38.0"" - -
2015-05-13T23:39:43.945958Z my-loadbalancer 192.168.131.39:2817 10.0.0.1:80 0.000086 0.001048 0.001337 200 200 0 57 ""GET https://www.example.com:443/ HTTP/1.1"" ""curl/7.38.0"" DHE-RSA-AES128-SHA TLSv1.2
2015-05-13T23:39:43.945958Z my-loadbalancer 192.168.131.39:2817 10.0.0.1:80 0.001069 0.000028 0.000041 - - 82 305 ""- - - "" ""-"" - -
2015-05-13T23:39:43.945958Z my-loadbalancer 192.168.131.39:2817 10.0.0.1:80 0.001065 0.000015 0.000023 - - 57 502 ""- - - "" ""-"" ECDHE-ECDSA-AES128-GCM-SHA256 TLSv1.2
elb client:port backend:port request_processing_time backend_processing_time response_processing_time elb_status_code backend_status_code received_bytes sent_bytes ""request"" ""user_agent"" ssl_cipher ssl_protocol
";
RegexOptions options = RegexOptions.Multiline;
foreach (Match m in Regex.Matches(input, pattern, options))
{
Console.WriteLine("'{0}' found at index {1}.", m.Value, m.Index);
}
}
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for C#, please visit: https://msdn.microsoft.com/en-us/library/system.text.regularexpressions.regex(v=vs.110).aspx